Your work will have an outsized impact. Everything you build is open source (MIT-licensed) and immediately visible. Langfuse has 35,000+ GitHub stars and our SDKs are downloaded more than a hundred million times per month.
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## About the Project We build hard, verifiable command-line tasks used to evaluate frontier AI agents. AI agents are good at the textbook. They still fail where experience matters: a default nobody questions, a rule nobody wrote down, a fix that looks right and isn't.
Binance is a leading global blockchain ecosystem behind the world’s largest cryptocurrency exchange by trading volume and registered users.
We are looking for an enthusiastic software engineer to join our AI networking acceleration team, to work on a groundbreaking open-source library, using hardware offloads, GPU Kernels and RDMA network cards.
Opportunity Snapshot Pay: $50–100/hour Time per task: ~15 hours per run Onboarding: As soon as you’re selected, Talent Ops will send you everything you need to get started You’ll need: clear open source contributions and a profile to showcase them, such as GitHub (preferably…
Opportunity Snapshot Pay: $50–100/hour Time per task: ~15 hours per run Onboarding: As soon as you’re selected, Talent Ops will send you everything you need to get started You’ll need: clear open source contributions and a profile to showcase them, such as GitHub (preferably…
Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open,…
Remotebase places senior engineers with fast-growing product companies around the world. We’re building a pool of experienced Rust Developers for Part-time Engagements with our clients. You’ll build and maintain high-performance, reliable backend and systems software.
Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open,…
Applications close Friday, October 16, 2026 at 12:00 p.m. Pacific. We are selecting the first three applicants who qualify for the initial pilot. About the work Build real-world tasks that test how well AI agents handle database engineering.
Schedule: Flexible, you pick the hours and days (including weekends if desired) Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input.
Schedule: Flexible, you pick the hours and days (including weekends if desired) Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input.
We are looking for software engineers to validate real-world repositories used to evaluate large language models. You will triage issues, set up reproducible environments, assess test quality, and check how well models fix real bugs.
We are looking for senior-level engineers with a visible open-source track record to help train AI systems on real code. You will create reinforcement-learning environments from real repositories, with reproducible setups and reference solutions.
We are looking for experienced software engineers to help train and evaluate AI models on real-world programming work. You will build and validate coding tasks, review AI-generated code, and write the reference solutions and tests that models are measured against.
Special Note: This role is the exact same as our Peer to Peer Software Engineer role in terms of overall work and responsibility over time. However in this role, CRDT experience is required and would be the primary focus of work when joining the team.
Join a high-scale consumer platform team as a Senior Backend Engineer, building the services behind digital experiences used by millions of people every day. 1.
Models write backend code that passes the happy-path test and falls over on everything else: the race condition under load, the N+1 that melts the database, the API contract that breaks every client the day you change it.
The newest models can vibe-code a whole feature in minutes. Someone has to check whether that code actually works, and that someone is you.
Schedule: Flexible, you pick the hours and days (including weekends if desired) micro1 is selecting Cyber Security Engineers to contribute technical expertise to a dynamic customer project. In this role, you'll apply your expertise to help train next-generation AI systems.
Schedule: Flexible, you pick the hours and days (including weekends if desired) Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input.
Schedule: Flexible, you pick the hours and days (including weekends if desired) Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input.
We build coding tasks used to train and evaluate frontier AI coding agents. We're looking for experienced software engineers to design them.
Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open,…
Location: Remote micro1 is engaging Software Engineer — Open Source Contributions experts to participate in an impactful customer project focused on high-quality, open source software development.
Role Title: Research Engineer - Code Generation & Model Evaluation Role Type: Contractor Location: Remote micro1 is engaging Research Engineers to participate in a project focused on code generation and model evaluation for a customer's initiative.
Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about.
At Rerun, we're building a new multimodal data stack for Physical AI. Large parts of the physical-world economy will be transformed by these technologies, and we're building the data infrastructure and tools that enable it to happen.
We are looking for outstanding Senior High Performance AI Engineers to build the next generation of agentic AI systems for the CUDA ecosystem.
Thank you for considering Tailscale. If this job description resonates with you, please apply. Frequently cited statistics show that people who identify with historically marginalized groups are likely to apply to jobs only if they meet 100% of the qualifications.
Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open,…
GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation.
Today, we’re tapping into the unlimited potential of AI to define the next era of computing. An era in which our GPU acts as the brains of computers, robots, and self-driving cars that can understand the world.
micro1 is selecting Software Engineers to support a customer’s innovative project. In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input.
Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about.
Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open,…
NVIDIA is dedicated to reinvent accelerated computing. Reinvention requires great technology and amazing people. As an NVIDIAN, you’ll be immersed in a diverse, supportive environment where everyone is inspired to do their best work.
Discord has a highly engaged community of millions of daily active users who use the platform for many different reasons, but there’s one thing that nearly everyone does: play video games.
We are seeking a Sr System Software Engineer to help us build out our scientific computing platform workflows on Cloud. This Cloud based scientific computing cloud platform enables Physics based Numerical Simulation Solvers, AI based Training, Inference and Visualization…
Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open,…
Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open,…
At webAI we firmly believe that the future of AI lies in distributed processing at the edge, bringing computation closer to the source of data generation. Our mission is to build a future where local and private is the default, servers and data centers are optional.
As an hourly paid, fully remote Rust Engineer for AI Data Training, you will review AI-generated Rust code and explanations or generate your own, evaluate the reasoning quality and step-by-step problem-solving, and provide expert feedback that helps models produce answers that…
Join a leading AI research organization's cutting-edge GenAI team and contribute to the development of next-generation AI models and applications.
Join a leading AI research organization at the forefront of generative AI and contribute to the development and evaluation of advanced Large Language Models.
Find real vulnerabilities in private repositories and turn them into difficulty-probed cybersecurity tasks for frontier LLMs. Project Fenrir contributors earn per in-band approved task, per qualifying repo, plus referral and milestone bonuses.
GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation.
GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation.
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